The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 18, 2022

Filed:

Feb. 28, 2018
Applicants:

Sciocs Company Limited, Ibaraki, JP;

Sumitomo Chemical Company, Limited, Tokyo, JP;

Inventor:

Fumimasa Horikiri, Ibaraki, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/30 (2006.01); G01N 21/95 (2006.01); G01N 21/956 (2006.01); H01L 21/67 (2006.01); H01L 21/66 (2006.01); H01L 29/20 (2006.01); H01L 29/34 (2006.01);
U.S. Cl.
CPC ...
G01B 11/30 (2013.01); G01N 21/9501 (2013.01); G01N 21/956 (2013.01); H01L 21/67288 (2013.01); H01L 22/12 (2013.01); H01L 29/2003 (2013.01); H01L 29/34 (2013.01);
Abstract

There is provided a method for manufacturing a semiconductor structure, including: preparing a plate-like semiconductor structure; and inspecting the semiconductor structure, the inspection of the semiconductor further including: performing a measurement of irradiating a surface of the semiconductor structure with a light from a light source in an oblique direction to the surface, and detecting a reflected light reflected or scattered by the surface by a two-dimensional detector, at a plurality of locations within at least a predetermined range of the surface of the semiconductor structure, to acquire a reflected light distribution that is a distribution of an integrated value obtained by integrating intensity of the reflected light measured at the plurality of locations, with respect to a position at the detector; and fitting the reflected light distribution by a multiple Gaussian function obtained by adding at least a first Gaussian function and a second Gaussian function distributed more widely than the first Gaussian function, to acquire a parameter of the second Gaussian function as an index corresponding to a surface roughness of the semiconductor structure.


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